Bare Metal VCU118 capability (similar to Arty100T) and Update to VCU118 documentation #1889
Description
Background Work
- Yes, I searched the mailing list
- Yes, I searched the documentation
Feature Description
Hi,
I have searched the mailing list and found this which relates to getting the VCU118 to handle bare metal programs loaded onto an SD card.
I would like to know how to change the configs of the VCU118 to support only bare metal programming using the TSI/UART interface just like with the Arty100T.
I have found that the bootrom for the VCU118 is different to the Arty100T due to the VCU118 config.scala including 'WithSystemModifications -> BootROMLocated' within. However, I have tried swapping out the bootrom here with one from the Arty100T, but I could not send a program over and get any output using the same commands as the Arty. I have also tried commenting out the 'BootROMLocated' section in the hopes that a different one would be loaded for the VCU118. No luck as of yet.
Clearly I have missed something, but I need help as to what. If I could be pointed to the right way to implement this, I would be happy to contribute.
Update to VCU118 Documentation
The documentation for the VCU118 should also have a notice saying to use the SD card a PMOD to SD card adapter is required. I know that the board specification file says it, but unfortunately I didn't look there first before I went to the shops!
Motivating Example
I am trying to send binaries over to the Rocket or BOOM CPUs implemented on the FPGA. I have no need for a full Linux boot as I am wanting to compare and benchmark the CPUs running certain tasks. So I would like a way to interface with the VCU118 just like the Arty100T.